209   uint64_t OffsetInBlock = Offset % BlockSize;  in tryReadContiguously()  local
210   uint64_t BytesFromFirstBlock = std::min(Size, BlockSize - OffsetInBlock);  in tryReadContiguously()
233   BlockData = BlockData.drop_front(OffsetInBlock);  in tryReadContiguously()
241   uint64_t OffsetInBlock = Offset % BlockSize;  in readBytes()  local
258     const uint8_t *ChunkStart = BlockData.data() + OffsetInBlock;  in readBytes()
259     uint64_t BytesInChunk = std::min(BytesLeft, BlockSize - OffsetInBlock);  in readBytes()
265     OffsetInBlock = 0;  in readBytes()
393   uint64_t OffsetInBlock = Offset % getBlockSize();  in writeBytes()  local
400         std::min(BytesLeft, getBlockSize() - OffsetInBlock);  in writeBytes()
405     MsfOffset += OffsetInBlock;  in writeBytes()
412     OffsetInBlock = 0;  in writeBytes()